IPC Subgroup
G03B 21/6 characterised by the nature of the surface
Introduced: September 1968
Last revised: January 2014
Full Title
Projectors or projection-type viewers; Accessories therefor > Accessories > Projection screens > characterised by the nature of the surface
Classification Context
- Section:
- PHYSICS
- Class:
- PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- Subclass:
- APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
5 direct subcodes
Child Classifications
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- G03B 21/602 Lenticular screens
- G03B 21/604 Polarised screens
- G03B 21/606 for relief projection
- G03B 21/608 Fluid screens
- G03B 21/62 Translucent screens